22769819 has 2 divisors, whose sum is σ = 22769820. Its totient is φ = 22769818.

The previous prime is 22769797. The next prime is 22769863. The reversal of 22769819 is 91896722.

It is a happy number.

It is an a-pointer prime, because the next prime (22769863) can be obtained adding 22769819 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22769819 - 2²⁴ = 5992603 is a prime.

It is a super-2 number, since 2×22769819² = 1036929314585522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22769819.

It is not a weakly prime, because it can be changed into another prime (22769899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11384909 + 11384910.

It is an arithmetic number, because the mean of its divisors is an integer number (11384910).

Almost surely, 2^22769819 is an apocalyptic number.

22769819 is a deficient number, since it is larger than the sum of its proper divisors (1).

22769819 is an equidigital number, since it uses as much as digits as its factorization.

22769819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The square root of 22769819 is about 4771.7731505175. The cubic root of 22769819 is about 283.4348137833.

The spelling of 22769819 in words is "twenty-two million, seven hundred sixty-nine thousand, eight hundred nineteen".